Borehole condition monitors



FIG. 1 is a three-dimensional front view of a borehole condition monitorin an inactivated condition incorporating the design of our invention;

FIG. 2 is a three-dimensional front view of a borehole condition monitorin an activated condition incorporating the design of our invention;

FIG. 3 is three-dimensional rear view of the borehole condition monitorof FIG. 1;

FIG. 4 is a front view of the borehole condition monitor of FIG. 2;

FIG. 5 is a top view of the borehole condition monitor of FIG. 2;

FIG. 6 is bottom view of the borehole condition monitor of FIG. 2;

FIG. 7 is a left side view of the borehole condition monitor of FIG. 2,the right side of the borehole condition monitor corresponding to theleft side of the borehole condition monitor; and,

FIG. 8 is a rear view of the borehole condition monitor of FIG. 2.

The design is for a borehole condition monitor. The monitor has anelongate body with an obliquely truncated end, allowing the body to bepegged into the ground in the vicinity of a borehole drilled forblasting. A warning light is provided on a front face of the body. Thewarning light is activated by an activation tab which projects from anelongate transverse slot when the monitor is in an inactivatedcondition.

The broken line showing of structural features is included for thepurpose of illustrating non-claimed subject matter and forms no part ofthe claimed design.

The ornamental design for borehole condition monitors, as shown anddescribed.